Johnson Controls JRC Series Owner's manual

Water Source Heat Pumps
Installation, Operation, Maintenance Supersedes: 14805-NOM1-0521 Form: 14805-NOM1-1221
97B0035N10
Issue Date: December 8, 2021
JRC-Series
Water Source Heat Pump
MODELS JRC
0.75-1.5 Tons

WATER-SOURCE HEAT PUMPS
JRC-Series
Rev.: December 8, 2021
Installation, Operation, Maintenance
2
Table of Contents
Model Nomenclature 3
General Information 4
Unit Physical Data 6
Installation 7
Piping Connections - JRC Size 06-15 9
Piping Connections - JRC Size 18 10
Piping Connections 11
Water-Loop Heat Pump Applications 12
Ground-Loop Heat Pump Applications 13
Ground-Water Heat Pump Applications 14
Water Quality Standards 16
Electrical - Line Voltage 20
Electrical 21
JRC Series Wiring Diagram Matrix 24
CXM Controls 25
DXM Controls 26
Safety Features - CXM/DXM Controls 28
Unit Commissioning and Operating Conditions 30
Piping System Cleaning and Flushing 31
Unit and System Checkout Procedure 32
Unit Start-Up Procedure 33
Unit Operating Conditions 34
Start-Up Log Sheet 36
Preventive Maintenance 37
Functional Troubleshooting 38
Performance Troubleshooting 39
Troubleshooting Form 40
Revision History 44

JRC-Series
Rev.: December 8, 2021
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 3
Model Nomenclature
JR C AB0 9 CG S S C S R B
94 5 6
7
8101112131415
JRC = Console
Revision Level
Voltage
Controls
Cabinet Construction
Subbase
A = Copper Water Coil w/ e-Coated Air Coil
Heat Exchanger Options
C = Copper Water Coil
J = Cupro-nickel Water Coil w/ e-Coated Air Coil
N = Cupro-nickel Water Coil
R = Right Piping
Piping Connections
L = Left Piping
V = Left Piping w/SS Drain Pan
W = Right Piping w/SS Drain Pan
Standard
S = 5” Subbase
H = 5” Subbase w/Motorized Damper
1 = 5” Subbase for Chassis Only Options
2 = 5” Subbase w/Motorized Damper for Chassis Only Options
3 = 5” Subbase for Extended Length Cabinets
4 = 5" Subbase w/Motorized Damper for Extended Length Cabinets
N = None
V = Copper Water Coil w/ e-Coated Air Coil & Extended Range Insulation
E = Copper Water Coil w/Extended Range Insulation
M = Cupro-nickel Water Coil w/ e-Coated Air Coil & Extended Range Insulation
F = Cupro-nickel Water Coil w/Extended Range Insulation
12 3
B = Standard
09, 12, 15, 18
B = Current Revision
Model Type
Unit Size
None
Motorized Water Valve
Autoflow (2.25 Gpm/Ton)
Autoflow (3.0 Gpm/Ton)
Motorized Water Valve & Afr (2.25)
Motorized Water Valve & Afr (3.0)
Secondary Circulation Pump
Water Circuit Options
F
G
H
J
K
L
V
FPT
With Sound Attenuation Package
Without Sound Attenuation Package
R = Remote Mounted Tstat w/CXM
S = Remote Mounted Tstat w/DXM
N = Remote Mounted w/CXM & MPC
P = Remote Mounted w/DXM & MPC
G = 208-230/60/1
A = 115/60/1
E = 265/60/1
POWER TERMINATION & OPTIONS
OPTION
A
B
D
F
K
DISCONNECT
SWITCH
-
-
-
X
X
FIELD
CONNECTED
(HARD WIRE)
X
-
-
-
-
20 Amp
PLUG &
CORD
-
X
-
-
X
BREAKER
-
-
X
-
-
RECEPTACLE
-
-
-
-
X
M = Bottom Return
D = Bottom Return w/Locking Control Door
B = Front Return
E = Front Return w/Locking Control Door
C = No Cabinet BR Chassis Only
J = No Cabinet FR Chassis Only
A = Bottom Return w/Extended Cabinet
K = Bottom Return w/Locking Control Door
w/Extended Cabinet
P = Front Return w/Extended Cabinet
Q = Front Return w/Locking Control Door
w/Extended Cabinet
S = Bottom Return
L = Bottom Return w/Locking Control Door
F = Front Return
G = Front Return w/Locking Control Door
N = No Cabinet BR Chassis Only
H = No Cabinet FR Chassis Only
R = Bottom Return w/Extended Cabinet
T = Bottom Return w/Locking Control Door
w/Extended Cabinet
U = Front Return w/Extended Cabinet
V = Front Return w/Locking Control Door
w/Extended Cabinet

WATER-SOURCE HEAT PUMPS
JRC-Series
Rev.: December 8, 2021
Installation, Operation, Maintenance
4
General Information
Safety
Warnings, cautions, and notices appear throughout this
manual. Read these items carefully before attempting any
installation, service, or troubleshooting of the equipment.
DANGER: Indicates an immediate hazardous situation,
which if not avoided will result in death or serious injury.
DANGER labels on unit access panels must be observed.
WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation or
an unsafe practice, which if not avoided could result in
minor or moderate injury or product or property damage.
NOTICE: Notication of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.
WARNING! To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal prociency requirements.
⚠ WARNING! ⚠
⚠ WARNING! ⚠
⚠ WARNING! ⚠
WARNING! The installation of water-source heat pumps and
all associated components, parts, and accessories which
make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
WARNING! This appliance is not intended for use by persons
(including children) with reduced physical, sensory, or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
WARNING! All refrigerant discharged from this unit must
be recovered WITHOUT EXCEPTION. Technicians must
follow industry accepted guidelines and all local, state, and
federal statutes for the recovery and disposal of refrigerants.
If a compressor is removed from this unit, refrigerant circuit
oil will remain in the compressor. To avoid leakage of
compressor oil, refrigerant lines of the compressor must be
sealed after it is removed.
CAUTION! To avoid equipment damage, DO NOT use
these units as a source of heating or cooling during the
construction process. The mechanical components and lters
can quickly become clogged with construction dirt and debris,
which may cause system damage and void product warranty.
⚠ WARNING! ⚠
⚠ CAUTION! ⚠
WARNING! This product can expose you to chemicals
including formaldehyde, which is known to the state of
California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.
⚠ WARNING! ⚠

JRC-Series
Rev.: December 8, 2021
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 5
General Information, Cont’d.
Inspection - Upon receipt of the equipment, carefully
check the shipment against the bill of lading. Make sure
all units have been received. Inspect the packaging of
each unit, and inspect each unit for damage. Insure that
the carrier makes proper notation of any shortages or
damage on all copies of the freight bill and completes a
common carrier inspection report. Concealed damage
not discovered during unloading must be reported to the
carrier within 15 days of receipt of shipment. If not led
within 15 days, the freight company can deny the claim
without recourse. Note: It is the responsibility of the
purchaser to le all necessary claims with the carrier.
Notify your equipment supplier of all damage within
fteen (15) days of shipment.
Storage - Equipment should be stored in its original
packaging in a clean, dry area. Store units in an upright
position at all times. Stack units a maximum of 3 units high.
Unit Protection - Cover units on the job site with
either the original packaging or an equivalent protective
covering. Cap the open ends of pipes stored on the
job site. In areas where painting, plastering, and/or
spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units and
contamination by foreign material. Physical damage and
contamination may prevent proper start-up and may
result in costly equipment clean-up.
Examine all pipes, ttings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.
Pre-Installation - Installation, Operation, and
Maintenance instructions are provided with each
unit. Horizontal equipment is designed for installation
above false ceiling or in a ceiling plenum. Other unit
congurations are typically installed in a mechanical room.
The installation site chosen should include adequate
service clearance around the unit. Before unit start-up,
read all manuals and become familiar with the unit and its
operation. Thoroughly check the system before operation.
Make sure wall behind the unit is at and smooth.
Prepare units for installation as follows:
1. Compare the electrical data on the unit nameplate
with ordering and shipping information to verify that
the correct unit has been shipped.
2. Keep the cabinet covered with the original packaging
until installation is complete and all plastering,
painting, etc. is nished.
3. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.
4. Inspect all electrical connections. Connections must be
clean and tight at the terminals.
CAUTION! DO NOT store or install units in corrosive
environments or in locations subject to temperature or
humidity extremes (e.g., attics, garages, rooftops, etc.).
Corrosive conditions and high temperature or humidity can
signicantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides will cause equipment damage.
⚠ CAUTION! ⚠
⚠ CAUTION! ⚠
CAUTION! CUT HAZARD - Failure to follow this caution may
result in personal injury. Sheet metal parts may have sharp
edges or burrs. Use care and wear appropriate protective
clothing, safety glasses and gloves when handling parts and
servicing heat pumps.

WATER-SOURCE HEAT PUMPS
JRC-Series
Rev.: December 8, 2021
Installation, Operation, Maintenance
6
Unit Physical Data
Optional Factory Installed Auto Flow Regulator GPM [LPS]
Model 2.25 GPM/Ton 3 GPM/Ton
92.0 [.126] 2.5 [.158]
12 2.5 [.158] 3.0 [.189]
15 3.0 [.189] 3.5 [.221]
18 3.5 [.221] 4.0 [.252]
Model 09 12 15 18
Compressor (1 Each) Rotary
Factory Charge HFC-410A (oz) [kg] 28 [0.794] 29 [0.822] 33 [0.907] 39 [1.105]
Blower Wheel
Blower Wheel Size (dia x w) -
(in) [mm] - Qty 2 5.25 x 6.25 [133 x 159]
Water Connection Size
FPT Fittings (in) 1/2 3/4
Coax Volume
Volume US Gal
[Liters]
.09
[.34]
.09
[.34]
.23
[.87]
.26
[.98]
Condensate Connection Size
I.D. Vinyl Hose (In) [mm] 5/8 [15.9]
Air Coil Size
Dimensions (h x w) - (in) [mm] 8 x 26
[203 x 660]
10 x 26
[254 x 660]
10 x 32
[254 x 812]
Filter Size
Bottom Return (in) [mm] 1 - 10 x 30 x 1 [254 x 762 x 25] 1 - 10 x 36 x 1 [254 x 914 x 25]
Front Return (In) [mm] 1 - 7 x 29.5 x 1/8 [178 x 749 x 3.2] 1 - 7 x 35.5 x 1/8 [178 x 902 x 3.2]
Unit Size
Bottom Return (Std. 5” Base)
(W x H x D) - (In) [mm] 48 x 26 x 12 [1219 x 660 x 305] 54 x 26 x 12 [1372 x 660 x 305]
Front Return (No Subbase)
(W x H x D) - (In) [mm] 48 x 21 x 12 [1219 x 533 x 305] 54 x 21 x 12 [1372 x 533 x 305]
Unit Weight
Weight - Operating, (lbs) [kg] 175 [79] 180 [82] 190 [86.2] 220 [99.8]
Weight - Packaged, (lbs) [kg] 185 [83.9] 190 [86] 200 [90.8] 232 [105.2]
All units have rubber grommet compressor mountings and TXV expansion devices.
Unit Maximum Water Working Pressure
Options Max Pressure PSIG [kPa]
Base Unit 500 [3,445]
Internal Secondary Pump (ISP) 145 [999]
Internal Motorized Water Valve (MWV) 300 [2,068]
Internal Auto Flow Valve 500 [3,445]
Use the lowest maximum pressure rating when multiple options are combined.
Optional hoses have pressure rating of 400 PSIG (2758 (kPa)

JRC-Series
Rev.: December 8, 2021
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 7
Installation
CAUTION! Poor or inadequate installation may result in
noisy unit operation or unattractive installation.
⚠ CAUTION! ⚠
The installation of Console Water-Source Heat Pumps
and all associated components, parts and accessories
that make up the installation shall be in accordance with
the regulations of ALL Authorities having jurisdiction
and MUST conform to all applicable Codes. It is the
responsibility of the Installing Contractor to determine and
comply with ALL applicable Codes and Regulations.
Note: An Installation Checklist is provided in this
manual. Complete this checklist after all installation
procedures are completed. A periodic maintenance
checklist provided in the Maintenance section outlines
recommended maintenance schedules. A Start-Up
Inspection Log is also included at the end of this
manual to encourage thorough unit checkout at initial
start-up. These checklists are not a substitute for the
detailed information found in the Installation section of
this manual .
1. Console units are typically installed along an outside
wall of the room. Provide adequate space in front
of the unit for service and maintenance. Locate
the Console Unit so that it provides adequate air
circulation throughout the room.
2. Unpack the Console Unit from the shipping carton.
Remove the front cabinet by lifting up and away
from the backplate. Protect the cabinet from damage
during installation by returning it to its original
packaging until required.
3. Using a carpenter’s square and a level, ensure the
unit is level. Shim the unit if necessary to assure
proper installation.
4. Select the proper fasteners to connect the backplate
securely to the wall.
5. Fasten the backplate onto the wall through the screw
holes located in the back ange. Secure the subbase
in place.
6. Remove subbase shipping support bracket and discard.
7. Make all necessary electrical connections as described
in the Electrical Wiring section of this manual. Consult
the wiring diagram to ensure proper hook-up.
8. Connect the nal piping as described in the Supply
and Return Piping and Condensate Piping section
of the manual. Install shut-off valves, piping and/or
hoses and other accessories as specied.
9. Before making the nal water connections, ush the
system as described in the Start Up section of this
manual. After ushing the system, connect piping and
hoses to the proper supply, return and condensate
connections of the unit.
Note: When necessary, use adapters to connect
hoses.
10. Install any other system components as required
following manufacturer’s instructions.
11. After Start-up, reinstall the front cabinet by carefully
lowering the front cabinet over the chassis onto the
backplate.
Supply and Return Hoses - Optional pressure-rated
hose assemblies 400 psi [2758 kPa] are available for use
with Console Units. Use the following guidelines when
installing supply and return hose assemblies.
1. Install supply and return hoses tted with swivel-joint
ttings at one end to prevent the hose from twisting.
2. Use adapters to secure the hose assembly to the unit
and the riser.
3. Do not allow the hose to twist during installation.
Twisting may damage the hose wall or the interior
rubber compound.
4. Use pipe joint compound sparingly on the pipe
threads of the tting adapters.
5. Prevent sealant from reaching the ared surfaces of
the joint.
6. Do not use pipe joint compound when teon thread
tape is pre-applied to hose assemblies or when
ared-end connections are used.
7. Maximum torque which may be applied to brass
ttings is 30 ft-lbs [41 N-m]. When a torque wrench
is not used, tighten brass ttings nger-tight plus one
quarter turn.
8. Tighten steel ttings as necessary.
9. Shut-off/balancing valves, ow indicators, and drain
tees in the supply runout and return at each oor to
aid in loop balancing and servicing.

WATER-SOURCE HEAT PUMPS
JRC-Series
Rev.: December 8, 2021
Installation, Operation, Maintenance
8
Installation, Cont’d.
⚠ CAUTION! ⚠
CAUTION! Loop Fluids should be of good quality with no
more than 0.50 ppm of chlorides w/copper heat exchangers
(125 ppm w/ Cupro-nickel) to prevent corrosion and should
also be ltered to a maximum 800 micron [0.8mm particle
size to prevent erosion of the heat exchangers.
Condensate Piping - Unit is supplied with condensate
drain hose, 5/8 inch [16 mm] I.D. exible plastic
nonpressure-rated, protruding from piping side of unit.
Connect this hose to building drain. Avoid making kinks
in hose to ensure an unobstructed ow of condensate
from the unit to the drain. DO NOT twist, pull hose out,
or push excess hose into unit. If hose will not connect to
your building drain several options include, relocate end
of building drain, add to or cut hose, use hard plastic or
copper elbow ttings for tight radii (put inside hose). Keep
hose positioned within or over subbase area so hose does
not interfere with front cabinet. Cabinet should not push or
reroute hose. Clamp all joints watertight. Check for leaks.
Internally the drain hose is clamped to drain pan and
pitched correctly. Horizontal runs of condensate hose
should be pitched downward 1/4 inch minimum for
every foot [10 mm per 46 cm] of hose. Avoid low points
because dirt collects in these areas and may cause
blockage. If blocked the condensate level in drain pan
increases. When the level gets too high, the Console unit
has sensor switch that will shut unit off. Overow may
still occur.
If the building drain connection is parallel with oor, the
height can be up to 1-1/2 inches [38 mm] above the
subbase for proper pitch and correct drainage. Up to 5
inches [127 mm] above the subbase is allowable, but
drainage will be slower. When the drain connection
is 2-1/2 to 5 inches [64 to 127 mm] above, the hose
inside the unit will act as a trap. Heights of more than 5
inches [127 mm] above the subbase are NOT allowable
(condensate overow may occur). If the unit has a
disconnect option, drain locations are limited. See unit
conguration pages for details.
Field installation of a trap or vent is not required unless
specied by local codes. Console units are designed in
a blow-through conguration. The condensate drain
pan is located on the outlet side of the blower so that
the pressure in the drain pan is higher than atmospheric
pressures.
When drain connection is completed check for proper
drainage and leaks. Correct if necessary.
If trap is used, check and clean often. See Preventive
Maintenance Instructions.

JRC-Series
Rev.: December 8, 2021
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Installation, Operation, Maintenance 9
Piping Connections – JRC Size 09-15
CAUTION! Corrosive system water requires corrosion
resistant ttings and hoses, and may require water treatment.
CAUTION! Piping must comply with all applicable codes.
⚠ CAUTION! ⚠⚠
CAUTION! ⚠
Left Hand Configuration
Water In
Water Out
Notes:*Dimension reduced by FPT fitting
2.72
(96)
Right Hand Configuration
Water In
Water Out
Blower Deck
Blower Access Panel
Compressor
Access
Panel
Control Box
1.84
(47)
0.75
(19)
20.50
(521)
40.98
(1040)
Condensate
Condensate
5/8" (15.9) ID
Vinyl Hose
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9)
OD Copper,
1/2" FPT or
1/2" MPT
Optional
Disconnect Box
(mounted to cabinet
not chassis)
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9AA)
OD Copper,
1/2" FPT or
1/2" MPT
Optional Fused
Disconnect Box
(mounted to cabinet
not chassis)
Also Available in Non-Fused
Optional Disconnect
Only Box (All Configurations)
Optional Flow
Regulator
Optional
Motorized
Water Valve
1.75 (44)
Out
In
Water
Connections
1/2” FPT
2.25
(57)
In
Out
*11.25 (286)
2.00
(51)
1.50 (38)
8.00 Min
(203)
2.25
(57)
5/8" (15.9) ID
Vinyl Hose
8.00 Min
(203)
Water Connections
1/2” FPT
*11.25 (286)
1.62 (41)
2.00
(51)
2.25
(57)
CAUTION!Corrosive system water requires corrosion
treatment.
� CAUTION! �
CAUTION! Piping must comply with all applicable codes.
� CAUTION! �
Left Hand Configuration
Water In
Water Out
Notes:*Dimension reduced by FPT fitting
2.72
(96)
Right Hand Configuration
Water In
Water Out
Blower Deck
Blower Access Panel
Compressor
Access
Panel
Control Box
1.84
(47)
0.75
(19)
20.50
(521)
40.98
(1040)
Condensate
Condensate
5/8" (15.9) ID
Vinyl Hose
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9)
OD Copper,
1/2" FPT or
1/2" MPT
Optional
Disconnect Box
(mounted to cabinet
not chassis)
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9AA)
OD Copper,
1/2" FPT or
1/2" MPT
Optional Fused
Disconnect Box
(mounted to cabinet
not chassis)
Also Available in Non-Fused
Optional Disconnect
Only Box (All Configurations)
Optional Flow
Regulator
Optional
Motorized
Water Valve
1.75 (44)
Out
In
Water
Connections
1/2” FPT
2.25
(57)
In
Out
*11.25 (286)
2.00
(51)
1.50 (38)
8.00 Min
(203)
2.25
(57)
5/8" (15.9) ID
Vinyl Hose
8.00 Min
(203)
Water Connections
1/2” FPT
*11.25 (286)
1.62 (41)
2.00
(51)
2.25
(57)
CAUTION!Corrosive system water requires corrosion
treatment.
� CAUTION! �
CAUTION! Piping must comply with all applicable codes.
� CAUTION! �

WATER-SOURCE HEAT PUMPS
JRC-Series
Rev.: December 8, 2021
Installation, Operation, Maintenance
10
Piping Connections, Cont’d. – JRC Size 18
CAUTION! Corrosive system water requires corrosion
resistant ttings and hoses, and may require water treatment.
CAUTION! Piping must comply with all applicable codes.
⚠ CAUTION! ⚠⚠
CAUTION! ⚠
Left Hand Configuration
Water In
Water Out
Notes:*Dimension reduced by FPT fitting
2.72
(96)
Right Hand Configuration
Water In
Water Out
Blower Deck
Blower Access Panel
Compressor
Access
Panel
Control Box
1.84
(47)
0.75
(19)
20.50
(521)
40.98
(1040)
Condensate
Condensate
5/8" (15.9) ID
Vinyl Hose
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9)
OD Copper,
1/2" FPT or
1/2" MPT
Optional
Disconnect Box
(mounted to cabinet
not chassis)
Optional
Motorized
Water Valve
Optional
Autoflow
Valve
Water Connections
5/8" (15.9AA)
OD Copper,
1/2" FPT or
1/2" MPT
Optional Fused
Disconnect Box
(mounted to cabinet
not chassis)
Also Available in Non-Fused
Optional Disconnect
Only Box (All Configurations)
Optional Flow
Regulator
Optional
Motorized
Water Valve
1.75 (44)
Out
In
Water
Connections
1/2” FPT
2.25
(57)
In
Out
*11.25 (286)
2.00
(51)
1.50 (38)
8.00 Min
(203)
2.25
(57)
5/8" (15.9) ID
Vinyl Hose
8.00 Min
(203)
Water Connections
1/2” FPT
*11.25 (286)
1.62 (41)
2.00
(51)
2.25
(57)
CAUTION!Corrosive system water requires corrosion
treatment.
� CAUTION! �
CAUTION! Piping must comply with all applicable codes.
� CAUTION! �